chore: cover assets generation with some expectations

src/__tests__/generate-assets.jest.test.ts

@@ -0,0 +1,38 @@
+import { existsSync, readFileSync } from 'fs';
+
+describe('generate-assets', () => {
+  let assets: Record<string, string>;
+
+  beforeAll(() => {
+    const path = __dirname + '/../../rulesets/assets/assets.json';
+    if (!existsSync(path)) {
+      fail('Missing assets.json file. Please run `yarn generate-assets`.');
+    }
+
+    const content = readFileSync(path, { encoding: 'utf8' });
+    assets = JSON.parse(content);
+    expect(assets).not.toBeUndefined();
+    expect(Object.keys(assets).length).toBeGreaterThan(1);
+  });
+
+  describe('produces properly serialized built-in rulesets', () => {
+    const testCases = [
+      ['oas', 'oas2-schema', 'title', 'A JSON Schema for Swagger 2.0 API.'],
+      ['oas', 'oas3-schema', 'description', 'Validation schema for OpenAPI Specification 3.0.X.'],
+    ];
+
+    it.each(testCases)(
+      "Ruleset '%s' contains a rule '%s' with an inlined schema bearing a '%s' property",
+      (ruleset: string, ruleName: string, schemaKey: string, schemaValue: string) => {
+        const key = `@stoplight/spectral/rulesets/${ruleset}/index.json`;
+        expect(Object.keys(assets)).toContain(key);
+        const content = JSON.parse(assets[key]);
+        const rule = content.rules[ruleName];
+        expect(rule).not.toBeUndefined();
+        const schema = rule.then.functionOptions.schema;
+        expect(schema[schemaKey]).not.toBeUndefined();
+        expect(schema[schemaKey]).toEqual(schemaValue);
+      },
+    );
+  });
+});